This page is currently not sponsored. Click here to sponsor this page.
|A Mixture Of:||Sodium Amphibole Subgroup, Sodium-Calcium Amphibole Subgroup|
Red Mn-bearing amphibole with variable compositions. Juddite was originally defined (1908) as a manganiferous amphibole with intense pleochroism (carmine, blue or green, and orange), and with the optic axial plane is perpendicular to the plane of symmetry.
Leake (1978) set juddite as a variety of arfvedsonite based on data provided by Bilgrami(1955). Later reviews of juddite analyses has shown a wide variation of compositions in the sodioum and sodium-calcium amphibole subgroups. Leakeite group and dellaventuraite group amphiboles was first described from juddite-like material
Classification of Juddite
|IMA status:||Discredited 1978|
Please feel free to link to this page.
Other Names for Juddite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Juddite
L.J. Spencer (1910): A (fifth) list of new mineral names: with an index of authors. Mineralogical Magazine Vol 15 pp 415-445
Bernard E. Leake (1978). Nomenclature of amphiboles, Mineralogical Magazine Vol 42 pp 533-563.
S.A. Bilgrami (1955). Manganese amphiboles from Chikla, Bhandara district, India. Mineralogical Magazine Vol. 30, pp 633-640
Kimberly Tait, Frank C. Hawthorne, Joel D. Grice, Luisa Ottolini, V.K Nayak (2005). Dellaventuraite, NaNa2(MgMn23+Ti4+Li)Si8O22O2, a new anhydrous amphibole from the Kajlidongri Manganese Mine, Jhabua District, Madhya Pradesh, India, American Mineralogist, Volume 90, pages 304-309.
Internet Links for Juddite
Localities for Juddite
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
|Fade toolbar when not in focus||Fix toolbar to bottom of page|
|Hide Social Media Links|
|Slideshow frame delay||seconds|
Locality Updated: Proserpina reservoir, Mérida, Badajoz, Extremadura, SpainFrom Joan Rosell, 5th Dec 2013 09:46:23